Chapter 1 Definitions

Question 1

Matter

Answer 1

Substance of the physical world, anything that occupies space or has substance

Question 2

Pedology

Answer 2

Study of soil

Question 3

Scientific method

Answer 3

1) state the problem
2) gather information about the problem
3) formulate hypothesis
4) test hypothesis by experimentation
5) record and analyze experiment
6) state the conclusion

Question 4

Hypothesis

Answer 4

A sensible explanation

Question 5

Constant

Answer 5

Conditions that stay the same in both the control and experimental groups of an experiment

Question 6

Variable

Answer 6

Conditions present only in an experimental group

Question 7

Atom

Answer 7

Most basic unit of matter

Question 8

Molecule

Answer 8

Atoms linked together in groups

Question 9

Mass

Answer 9

Amount of matter in an object

Question 10

Weight

Answer 10

Pull of gravity on an object

Question 11

Volume

Answer 11

Amount of space that matter takes up

Question 12

Density

Answer 12

Mass per unit volume of a substance (how tightly packed matter is)

Question 13

Organic material

Answer 13

Primarily derived from living organisms

Question 14

Science

Answer 14

Study of matter and movement of God’s physical creation

Question 15

Mineral material

Answer 15

Primarily derived from no living matter, such as minerals and rocks

Question 16

Weathering

Answer 16

Process that breaks rocks down into soil

Question 17

Bedrock

Answer 17

Layer of solid rock below the subsoil

Question 18

Loam

Answer 18

Soil containing a range of sand, silt, clay, and humus mixtures

Question 19

pH scale

Answer 19

Used by chemists to express the degree of acidity or basicity of a substance